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Code Issues Releases Wiki Activity

Build dict for /expand. Replace multiple spaces with single space.

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Ceda EI
2020-04-23 20:30:19 +05:30
parent 382579ba3f
commit af56ffbbb3
1 changed files with 16 additions and 3 deletions
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19
commands/expand.js
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@@ -1,15 +1,28 @@
function expand(words, text) {
const letters = text.trim().toLowerCase().split("");
// Build a dictionary with lowercase letters as keys
const dict = {};
words.forEach(word => {
if (word == "")
return;
const initial = word.split("")[0].toLowerCase();
if (initial in dict)
dict[initial].push(word);
else
dict[initial] = [word];
});
return letters.map((letter) => {
const wordsWithLetter = words.filter(i => i.match(RegExp(`^${letter}`, "i")));
if (! wordsWithLetter.length)
if (!(letter.toLowerCase() in dict))
return letter;
const wordsWithLetter = dict[letter.toLowerCase()];
const word = wordsWithLetter[Math.floor(Math.random() * wordsWithLetter.length)];
return word;
}).reduce((acc, cur) => acc + " " + cur);
}).reduce((acc, cur) => acc + " " + cur).replace(/\s{2,}/, " ");
}